<template>
  <div class="login-index" :style="backgroundDiv">

    <div class="login-window-index">


      <div class="title">
       <img src="../../assets/logo2.jpg" style="width: 40px;position: relative; top: 13px;right: 6px">
        <span style="color: #ee6e08;">企业人事职工管理系统</span>
      </div>

      <el-form
        ref="loginForm"
        :model="loginForm"
        :rules="loginRules"
        autocomplete="on"
        label-position="left"
      >
      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          style="width: 90%;margin-left: 10px"
          ref="username"
          v-model="loginForm.username"
          placeholder="用户名"
          name="username"
          type="text"
          tabindex="1"
          autocomplete="on"
        />
      </el-form-item>

      <el-tooltip
        v-model="capsTooltip"
        content="Caps lock is On"
        placement="right"
        manual
      >
        <el-form-item prop="password">
          <span class="svg-container">
            <svg-icon icon-class="password" />
          </span>
          <el-input
            style="width: 90%;margin-left: 10px"
            :key="passwordType"
            ref="password"
            v-model="loginForm.password"
            :type="passwordType"
            placeholder="密码"
            name="password"
            tabindex="2"
            autocomplete="on"
            @keyup.native="checkCapslock"
            @blur="capsTooltip = false"
            @keyup.enter.native="handleLogin"
          />
          <span class="show-pwd" @click="showPwd">
            <svg-icon
              :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'"
            />
          </span>
        </el-form-item>
      </el-tooltip>

      <el-button
        :loading="loading"
        type="success"
        style="width: 100%; margin-bottom: 30px"
        @click.native.prevent="handleLogin"
        >登录</el-button
      >

    </el-form>

    </div>

  </div>
</template>

<script>
import { validUsername } from "@/utils/validate";
import SocialSign from "./components/SocialSignin";

export default {
  name: "Login",
  components: { SocialSign },
  data() {
    const validateUsername = (rule, value, callback) => {
      if (!validUsername(value)) {
        callback(new Error("Please enter the correct user name"));
      } else {
        callback();
      }
    };
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error("The password can not be less than 6 digits"));
      } else {
        callback();
      }
    };
    return {
      backgroundDiv: {
        backgroundImage:
          "url(" + require("@/assets/bg.png") + ")",
        backgroundRepeat: "no-repeat",
        backgroundSize: "100% 100%",
      },
      loginForm: {
        username: "admin",
        password: "123456",
      },
      loginRules: {
        // username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        // password: [{ required: true, trigger: 'blur', validator: validatePassword }]
      },
      passwordType: "password",
      capsTooltip: false,
      loading: false,
      showDialog: false,
      redirect: undefined,
      otherQuery: {},
    };
  },
  watch: {
    $route: {
      handler: function (route) {
        const query = route.query;
        if (query) {
          this.redirect = query.redirect;
          this.otherQuery = this.getOtherQuery(query);
        }
      },
      immediate: true,
    },
  },
  created() {
    // window.addEventListener('storage', this.afterQRScan)
  },
  mounted() {
    if (this.loginForm.username === "") {
      this.$refs.username.focus();
    } else if (this.loginForm.password === "") {
      this.$refs.password.focus();
    }
  },
  destroyed() {
    // window.removeEventListener('storage', this.afterQRScan)
  },
  methods: {
    checkCapslock(e) {
      const { key } = e;
      this.capsTooltip = key && key.length === 1 && key >= "A" && key <= "Z";
    },
    showPwd() {
      if (this.passwordType === "password") {
        this.passwordType = "";
      } else {
        this.passwordType = "password";
      }
      this.$nextTick(() => {
        this.$refs.password.focus();
      });
    },
    handleLogin() {
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          this.loading = true;
          this.$store
            .dispatch("user/login", this.loginForm)
            .then(() => {
              this.$router.push({
                path: this.redirect || "/",
                query: this.otherQuery,
              });
              this.loading = false;
            })
            .catch(() => {
              this.loading = false;
            });
        } else {
          console.log("error submit!!");
          return false;
        }
      });
    },
    getOtherQuery(query) {
      return Object.keys(query).reduce((acc, cur) => {
        if (cur !== "redirect") {
          acc[cur] = query[cur];
        }
        return acc;
      }, {});
    },
  },
};
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: grey;
$cursor: black;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

.login-index {
  background: #ffffff;
  height: 100%;
  position: relative;
}


.login-window-index {
  opacity: 0.95;
  padding: 20px;
  width: 500px;
  height: 400px;
  background: #ffffff;
  position: absolute;
  left: 50%;
  top: 50%;
  margin-left: 30%;
  transform: translate(-50%, -50%);
}
</style>

<style lang="scss" scoped>
$bg: #ffffff;
$dark_gray: black;
$light_gray: #eee;

.title {
  text-align: center;
  margin: 30px auto;
  font-size: 25px;
}

.login-container {
  height: 100%;
  width: 100%;
  background-color: #ffffff;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: grey;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;
    margin-top: 100px;
    .title {
      font-size: 32px;
      color: #ee6e08;
      margin: 0px auto 40px auto;
      text-align: center;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    margin-left: 10px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }

  .thirdparty-button {
    position: absolute;
    right: 0;
    bottom: 6px;
  }

  @media only screen and (max-width: 470px) {
    .thirdparty-button {
      display: none;
    }
  }
}
</style>
